I was reading about a 1000 HP drag car (13B) (
http://www.rx7club.com/showthread.php?t=182522&page=16
and saw that the ceramic seals were aftermarket pieces from NRS up in
Canada. (
http://members.shaw.ca/nrsrotorsports/index.html ) I looked
them up and see that they do re-chromes as well on rotor housings. Very
nice work. Worth a look anyway.
Lynn E. Hanover
I have some pictures of some of their plating stuff coming off.
The seals might be OK
--
Paul Lamar ...No rotor no motor.
Paul, the seals are a lot better than ok and please don't confuse NRS with
JHB. I do not do the cermet housings. What Lynn is referring to is an actual
re-chromed rotor housing as in the attached.
Sven
I am not confusing anything. Of course coatings or plating's can look good when brand new.
This first picture is obviously a picture of a brand new coating or plating.
If a coating or plating comes off in a car engine no big deal. Pull over the side of
the road and stop. If a coating or plating comes off while over the mountains in
an airplane you are in a world of hurt.
It is dumb to risk your life to save $50 bucks on a new rotor housing by
buying a refurbished used housing. I am not the only person with
that opinion. Jim Wall of Hendricks Racing speaking of coatings says:
"Unless we find there is real performance we will resists changes".
Coatings and platting's are getting a bad reputation.
The same thing can be said about after market apex seals.
We know stock apex seals have millions if not billions of hours
of use. Mazda spent millions on developing them and lots of money
making them.
http://www.rotaryeng.net/seals.html
Let the car racers fool around with that sort of after market stuff.
Paul Lamar ...No rotor no motor.
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